Index: trunk/data/validator/geometry.mapcss
===================================================================
--- trunk/data/validator/geometry.mapcss	(revision 11232)
+++ trunk/data/validator/geometry.mapcss	(revision 11353)
@@ -140,4 +140,5 @@
 node[amenity=parking]["capacity:disabled" !~ /^(yes|[0-9]+)$/] ∈ *[amenity=parking] {
   throwWarning: tr("{0} inside {1}", "amenity=parking", "amenity=parking");
+  group: tr("{0} inside {1}", "amenity", "amenity");
 }